[FEAT MERGE] OB Support XMLType

Co-authored-by: simonjoylet <simonjoylet@gmail.com>
2023-04-28 03:45:10 +00:00
parent 58bb3d34b7
commit 17abf2818a
405 changed files with 18839 additions and 1573 deletions
--- a/src/sql/engine/expr/ob_expr_xmlparse.cpp
+++ b/src/sql/engine/expr/ob_expr_xmlparse.cpp
@ -0,0 +1,123 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ * This file is for func xmlparse.
+ */
+
+#include "ob_expr_xmlparse.h"
+#include "ob_expr_xml_func_helper.h"
+
+#define USING_LOG_PREFIX SQL_ENG
+
+using namespace oceanbase::common;
+
+namespace oceanbase
+{
+namespace sql
+{
+
+ObExprXmlparse :: ObExprXmlparse(common::ObIAllocator &alloc)
+  : ObFuncExprOperator(alloc, T_FUN_SYS_XMLPARSE, N_XMLPARSE, MORE_THAN_TWO, NOT_VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION)
+{
+}
+
+ObExprXmlparse::~ObExprXmlparse() {}
+
+int ObExprXmlparse::calc_result_typeN(ObExprResType &type,
+                                      ObExprResType *types_stack,
+                                      int64_t param_num,
+                                      ObExprTypeCtx &type_ctx) const
+{
+  UNUSED(type_ctx);
+  INIT_SUCC(ret);
+  if (OB_UNLIKELY(param_num != 4)) {
+    ret = OB_ERR_PARAM_SIZE;
+    LOG_WARN("invalid param number", K(ret), K(param_num));
+  } else {
+    // param 0 indicate type is document or content
+    // param 1 is xml text for parsing
+    // param 2 indicate wellformed or not
+    // param 3 is output format only used with xmlagg, should be removed when xml binary ready
+    ObObjType xml_type = types_stack[1].get_type();
+    if (types_stack[1].get_type() == ObNullType) {
+    } else if (ob_is_string_type(xml_type)) {
+      if (types_stack[1].get_collation_type() == CS_TYPE_BINARY) {
+        ret = OB_ERR_INVALID_XML_DATATYPE;
+        LOG_USER_ERROR(OB_ERR_INVALID_XML_DATATYPE, "CHAR", ob_obj_type_str(xml_type));
+        LOG_WARN("Unsupport for string type with binary charset input.", K(ret), K(xml_type));
+      } else if (types_stack[1].get_charset_type() != CHARSET_UTF8MB4) {
+        types_stack[1].set_calc_collation_type(CS_TYPE_UTF8MB4_BIN);
+      }
+    } else {
+      ret = OB_ERR_INVALID_XML_DATATYPE;
+      LOG_USER_ERROR(OB_ERR_INVALID_XML_DATATYPE, "CHAR", ob_obj_type_str(xml_type));
+      LOG_WARN("invalid type, expect char", K(ret), K(xml_type));
+    }
+
+    for (int64_t i = 0; i < param_num && OB_SUCC(ret) && i != 1; i++) {
+      if (types_stack[i].get_type() == ObNullType) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("param0 type is unexpected", K(types_stack[i].get_type()));
+      } else if (types_stack[i].get_type() != ObIntType) {
+        types_stack[i].set_calc_type(ObIntType);
+      }
+    }
+
+    if (OB_SUCC(ret)) {
+      type.set_sql_udt(ObXMLSqlType);
+    }
+  }
+  return ret;
+}
+
+
+int ObExprXmlparse::get_clause_opt(const ObExpr &expr,
+                                   ObEvalCtx &ctx,
+                                   uint8_t index,
+                                   uint8_t &type,
+                                   uint8_t size_para)
+{
+  INIT_SUCC(ret);
+  int num_args = expr.arg_cnt_;
+  if (OB_UNLIKELY(index >= num_args)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("invalid args num", K(index), K(num_args));
+  } else {
+    ObExpr *xml_arg = expr.args_[index];
+    ObObjType val_type = xml_arg->datum_meta_.type_;
+    ObDatum *xml_datum = NULL;
+    if (OB_FAIL(xml_arg->eval(ctx, xml_datum))) {
+      LOG_WARN("eval xml arg failed", K(ret));
+    } else if (val_type != ObIntType) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("input type error", K(val_type));
+    } else {
+      int64_t option_type = xml_datum->get_int();
+      if (option_type < 0 || option_type >= size_para) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("input option type error", K(option_type));
+      } else {
+        type = static_cast<uint8_t>(option_type);
+      }
+    }
+  }
+  return ret;
+}
+
+int ObExprXmlparse::cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr, ObExpr &rt_expr) const
+{
+  UNUSED(expr_cg_ctx);
+  UNUSED(raw_expr);
+  rt_expr.eval_func_ = eval_xmlparse;
+  return OB_SUCCESS;
+}
+
+} // sql
+} // oceanbase